#903C31
Closest named color: Brick (#A03623). oklch(46.8% 0.116 29.7), rgb(144, 60, 49).
Aa
White text reads best on this color (7.30:1).
About this color
#903C31 is a medium-dark, moderately saturated red. In OKLCH its lightness is 47%, its chroma 0.116 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Brick (#A03623), ΔE 0.033 away. White text reads best on it, at 7.30:1.
| Hue family | Reds |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.116) |
| Temperature | warm |
| Nearest name | Brick (#A03623) |
| Black text | 2.87:1 |
| White text | 7.30:1 |
Values
| HEX | #903C31 |
| RGB | rgb(144, 60, 49) |
| HSL | hsl(7, 49%, 38%) |
| OKLCH | oklch(46.8% 0.116 29.7) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #903C31 | 7.30:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #903C31 | 2.87:1 | Fails | Lc 19.3 | Dividers and decoration only |
| #903C31 text on white | 7.30:1 | AAA | Lc 84.8 | Fine for body text |
| #903C31 text on black | 2.87:1 | Fails | Lc -17.2 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 700.
-
Step 50
50
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F5E6E3
oklch(93.6% 0.017 31.1)
-
Step 200
200
#EDD2CD
oklch(88.5% 0.031 30.2)
-
Step 300
300
#E3B4AC
oklch(81% 0.056 29.5)
-
Step 400
400
#D38B7F
oklch(70.7% 0.091 29.9)
-
Step 500
500
#C56D5F
oklch(63.1% 0.114 30.1)
-
Step 600
600
#B15346
oklch(55.7% 0.125 29.7)
-
Step 700
700 (this color)
#903C31
oklch(46.8% 0.116 29.7)
-
Step 800
800
#7B382E
oklch(42.7% 0.096 30.2)
-
Step 900
900
#643129
oklch(37.8% 0.075 30.2)
-
Step 950
950
#3B1D18
oklch(27.1% 0.048 30.5)
#903C31 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #524B30 | 0.120 |
| Deuteranopia (no green cones) | #675D2F | 0.110 |
| Tritanopia (no blue cones) | #9E2C3A | 0.042 |
| Achromatopsia (no color) | #565656 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #903C31
#903C31
oklch(46.8% 0.116 29.7)
- #006673
#006673
oklch(46.8% 0.081 209.9)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #903C31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick #A03623 ΔE 0.033
- Red Brown #8B2E16 ΔE 0.037
- Brown Red #922B05 ΔE 0.040
- Rust Brown #8B3103 ΔE 0.041
- Saddle Brown #8B4513 ΔE 0.042
- Auburn #9B2226 ΔE 0.044
- Russet #A13905 ΔE 0.045
- Brown #A52A2A ΔE 0.046
Use #903C31 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.